<form class="mb-3">

    <label for="searchField" class="sr-only">Search</label>

    <div class="input-group">
        <input type="text" class="form-control" id="searchField" placeholder="Search" title="At least 3 characters"
               aria-label="Search"/>
        <div class="input-group-append">
            <button class="btn btn-outline-secondary" type="button"><i class="fa fa-search"></i></button>
        </div>
    </div>
</form>
